The vulnerable trees at The Green Cathedral (1996) by Marinus Boezem in Almere will be replaced with new plantings. At Earthsea (1982) by Piet Slegers in Zeewolde, the weathered embankments will be replaced and the contours and paths will be tightened. The surroundings of the Observatory (1977) by Robert Morris in Lelystad, is being returned to its original state. And at Sea Level (1996) by Richard Serra in Zeewolde, the gray coating is removed because it appears to be affecting the artwork.
The restorations involve various experts, performers and restorers. Where necessary, advice will be sought from the State Service for Cultural Heritage. The contribution of the province will be made available through a subsidy to the owners of the four works of art: Het Flevolandschap, Municipality of Zeewolde and Municipality of Almere. These owners are also responsible for the regular management and maintenance of the artworks. The Province will take the opportunity of the repairs to make firm agreements with the owners of the landscape artworks about future management and maintenance.